Observations
What do we use to make observations?
5 Senses
When should a hypothesis be written?
Before the experiment
This is the variable that is measured or observed in response to changes.
Dependent Variable
This group receives the new "treatment"
Experimental Group
This is the logical process scientists use to investigate a problem and answer questions.
Scientific Method
This type of observation includes numbers and can be counted or measured, such as "The mass increased by 0.148 grams."
Quantitative Observation
A good hypothesis will use this format
If...then...
This is the variable that the experimenter changes or manipulates in an experiment.
Independent Variable
This is the group in an experiment that does not receive the changed independent variable and is used for comparison.
Control Group
After conducting an experiment, scientists do this to look for patterns and use the results to help answer their question.
Analyze Data
This type of observation is descriptive and does not include numbers, such as "The balloon expanded."
Qualitative Observation
This comes before a hypothesis
Question
In an experiment testing whether music affects math test scores, the music is this type of variable.
Independent Variable
In a controlled experiment, how many test variables should be changed at a time.
One
List the 6 steps of the scientific method in order
1. Ask Question
2. Conduct Research
3. Hypothesis
4. Experiment
5. Analysis
6. Conclusion/Report Results
Microscopes, telescopes, thermometers, rulers or other scientific instruments that help enhance our senses
Tools
A suggested explanation
Hypothesis
When graphing experimental data, the independent variable goes on this axis.
x-axis (horizontal)
Variables that are kept the same throughout the experiment
Constants
What step comes after the conclusion/sharing results?
Ask a question again
The way you organize, interpret, and experience sensory information to make sense of the world around you.
Perception
A hypothesis should include these two parts
Independent and dependent variables
In the hypothesis "Adding acid to water will inhibit a plant's growth," the plant's growth is this type of variable, and it would be graphed on this axis.
Dependent variable, y-axis (vertical)
An experiment is designed to test if temperature affects glowstick brightness. Name the independent variable, dependent variable, and one constant
IV = Temperature
DV = Brightness
Constant = size of glowstick, observation time, method of measuring brightness, etc.
What should a scientist include in their conclusion? (List 4)
accept or reject hypothesis
summary of results/experiment
errors
reflection